Once custom firmware is installed on your PS Vita you will be able to install games to your memory card and play them without the cartridge installed. You will also be able to install other HomeBrew applications like Emulators and enjoy other options like the SD2Vita adapter that allows you to use normal SD cards in your Vita.

Please Note: Backing up games onto your console to play without the disc that you do not actually own is against copyright laws and we do not condone this.